Salesman Pencil Collection?

I am curious if anybody has any information about this pencil collection at all. When I was about 9 or 10 I loved collecting pencils and found this collection at an antique store. At the time I just thought it was neat and old but now that I look at it, it makes me think of a door to door salesman and that is what I am assuming it was from. The pamhplets that came with it say 'prices effective March 1st 1941.' Any information you have I'd love to hear :)